Tetron

"Features: Single Player Multiplayer Cooperative Classic Deathmatch Enhanced Deathmatch Team Deathmatch Shared Team Fields Enhanced Deathmatch with Weapons play against Bots create your own Bot !!! save and replay single/multiplayer games team alliances spectator modes runs under Windows 95/98/ME/NT/2000/XP World Rankings for Individuals for Teams Internet Server Database Internet/LAN Games Integrated Chat Ingame Messages Server Software Customizable Skins Customizable Sound Themes Dynamic window resizing and placing for optimal view Custom mp3/ogg background music Bilinear filtered skins to fit screen resolution Highscores Single/Teams Gamepad Support Fast Growing Tetron Community DirectX Graphics Channel Scores and much more... "

http://www.tetron2000.com/